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I have 2004.5 RAM 2500 w/Cummins (of course). Has an Edge EZ chip that came with it from previous owner. Coming back from errand this AM and truck started running terrible and check engine light was on. Checked DTCs and got P2146 "Fuel injector Group 1 supply voltage circuit/open" and P0202 "Fuel injector 2 circuit/open".

Could this be from the chip? I recently filled up and added "Power Source Diesel Kleen + Cetane Boost" to the fuel.

Any suggestions and help would be greatly appreciated.

I am a total amateur at this so If you can help with detailed instructions or where to get detailed instructions including photos it would be wonderful!

welcome to the living world of color high powered Cummins diesels.
the horizontal control on the foot pedal works far better than the vertical control

don't waste your hard earned money on the extra Cetane boost stuff, US diesel doesn't need it nor does the Cummins. regular old Power S. Diesel Kleen will serve you well. try some commercial bio diesel now and then to help keep things clean inside. these things make soot and lots of diesel snot inside.

kinda like a woman that doesn't have sex that often, gotta blow her out now and then or things get gummed up and stop working.

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